Arithetic

Question 1

Find the 10th term of sequence with a1=2

Answer 1

d=3

Question 2

Find the 12th term of sequence with a1=5

Answer 2

d=-2

Question 3

Find the 8th term of sequence with a1=-4

Answer 3

d=6

Question 4

Find the 15th term of sequence with a1=7

Answer 4

d=5

Question 5

Find the 20th term of sequence with a1=10

Answer 5

d=-3

Question 6

Find the sum of first 20 terms of sequence with a1=1

Answer 6

d=2

Question 7

Find the sum of first 15 terms of sequence with a1=3

Answer 7

d=5

Question 8

Find the sum of first 12 terms of sequence with a1=-2

Answer 8

d=4

Question 9

Find the sum of first 25 terms of sequence with a1=6

Answer 9

d=-1

Question 10

Find the sum of first 30 terms of sequence with a1=10

Answer 10

d=-2

Question 11

Find the 10th term of sequence with a1=1/2

Answer 11

d=1/3

Question 12

Find the sum of first 10 terms of sequence with a1=1/2

Answer 12

d=1/3

Question 13

Find the 12th term of sequence with a1=2/3

Answer 13

d=-1/6

Question 14

Find the sum of first 12 terms of sequence with a1=2/3

Answer 14

d=-1/6

Question 15

Find the 15th term of sequence with a1=-3/4

Answer 15

d=1/2

Question 16

Find the sum of first 15 terms of sequence with a1=-3/4

Answer 16

d=1/2

Question 17

Find the 8th term of sequence with a1=5/6

Answer 17

d=1/6

Question 18

Find the sum of first 8 terms of sequence with a1=5/6

Answer 18

d=1/6

Question 19

Find the 20th term of sequence with a1=7/8

Answer 19

d=-1/4

Question 20

Find the sum of first 20 terms of sequence with a1=7/8

Answer 20

d=-1/4

Question 21

If a5=20 and a12=62 in an arithmetic sequence

Answer 21

find d

Question 22

If a7=15 and a1=3 in an arithmetic sequence

Answer 22

find d

Question 23

If a10=50 and d=5 in an arithmetic sequence

Answer 23

find a1

Question 24

If a15=100 and d=-2 in an arithmetic sequence

Answer 24

find a1

Question 25

In an arithmetic sequence

Answer 25

the 4th term is 10 and the 10th term is 40. Find a1 and d

Question 26

The sum of the first 20 terms of an arithmetic sequence is 210

Answer 26

and a1=2. Find d

Question 27

Find the common difference if a1=4 and a10=31

Answer 27

3

Question 28

Find a1 if a20=95 and d=5

Answer 28

-

Question 29

Find S25 if a1=3 and d=4

Answer 29

1275

Question 30

Find the 30th term of sequence with a1=-7

Answer 30

d=6

Question 31

Find the sum of first 12 terms if a1=8 and d=7

Answer 31

564

Question 32

Find d if a8=50 and a20=146

Answer 32

8

Question 33

Find a1 if a12=70 and d=6

Answer 33

4

Question 34

Find the 18th term if a1=12 and d=-3

Answer 34

-39

Question 35

Find the sum of first 15 terms if a1=5 and d=10

Answer 35

1200

Question 36

Find the 25th term of sequence with a1=9 and d=-4

Answer 36

-87

Question 37

Find the sum of first 10 terms if a1=-2 and d=-5

Answer 37

-95

Question 38

Find d if a6=7 and a16=-23

Answer 38

-3

Question 39

Find a1 if a5=40 and d=8

Answer 39

8

Question 40

Find the sum of first 30 terms if a1=4 and d=2

Answer 40

930